3
  0.917512  -0.389742 -0.0792018  0.0227376
  0.304466   0.560206    0.77037   0.177027
 -0.255877  -0.730938   0.632659   0.830965
         0          0          0          1
   0.988141    0.123219  -0.0916252 -0.00467033
-0.00717232    0.633093    0.774042 -0.00316769
   0.153384   -0.764206    0.626469     1.06687
          0           0           0           1
  0.743942    0.66566 -0.0587112  -0.249283
 -0.384809   0.498573   0.776754  0.0864612
  0.546326  -0.555268   0.627061   0.908693
         0          0          0          1
